Thomas hipwell



(No ModeL) T. HIPWELL.

ARGAND LAMP.

Patented Aug. l1, 1891.

UNITEDI STATES PATENT OFFICE. 5

THOMAS HIPIVELL, OF LONG ISLAND CITY, ASSIGNOR TO THE BRASS COMPANY, OF NEV YORK, N. Y.

MANHATTAN ARGAN D LAM P.

SPECIFICATION forming part of Letters Patent No. 457,587', dated August 11, 1891.1

Application filed February 9, 1891. Serial No. 380,709. (No model.)

To all whom t may concern:

Be it known that I, THOMAS HIPWELL, a citizen of the United States, residing at Long Island City,in the county of Queens and State of New York, have invented a certain new and useful Improvement in Argand Lamps, ot which the following is a specification.

Lamps have been made with wick-raising rings of sheet metal, having teeth on the inro ner surfaces and set at an inclination to rotate the Wick and raise or lower the same, and a wire helix has been rotated about its axis, while the outer surface is in contact with the wick to raise or lower the same.

Myinvention consists-in an endless flexible band that passes around the Argand wick and wick-tube at an inclination and around apulley or wheel, which latter is rotated by a hand button or knob. The longitudinal movement 2o given to this inclined endless flexible band rotates the wick about the central tube and elevates or depresses it, according to the direction of rotation.

In the drawings, Figure l is a vertical section of part ot' a lamp, showing my improvement. Fig. 2 is a sectional plan at n: x, Fig. l. Fig. 3 is a cross-section of a preferable form of the grooved pulley or Wheel for rotating the wire helix, and Fig. 4 is a sectional plan 3o at y y. Fig. 5 is a diagrammatic view showing the endless band passing around two inclined pulleys.

In Fig. l, a represents the fount of the lamp; b, the central air-tube; c, the ai r-distributer; d, the deector; d', the wick-tube, and e the wick. These parts maybe ot' any well-known description and do not require further explanation. v

frepresents my endless band passing around 4o the wick e at an inclination, and g is a grooved wheel or pulley around which the endless band f passes and by which the band is operated. This grooved pulley g is upon an axis h, passing through a collar i, secured in and to the shell of the fount. Connected to the outer and upper end of the axis 7L is a hand button or knob 7o, to be grasped by the fingers and rotated in either direction to operate the grooved pulley and endless band in raising or 5o lowering the wick.

The endless band f, passing around the wick e at an inclination, acts not only t0 rotate the wick upon the tube b but to raiseor lower the wick, according to the direction 'of rotation ot the band f. The greater the an- V gle ot inclination of theband f the more rapidly the wick will be raised or lowered, and the less the vangle the slower will be the movement. I have shown and prefer to employ only a moderate angle of inclination. 6c

The endless baud f may be made of any desired material to accomplish the object sought.

I, however, prefer and have shown a Wire helix, as the same possesses the desired degree of'elasticity and is capable of maintain- 6 5- ing it, and also because said wire helix is unaitected by the oil or vapors within the fount of the lamp.

The grooved pulley, Fig. 3, is composed of two similar stamped-up saucershaped parts 7o ZZ and an intermediate toothed plate m. Slotted openings are made in the plate m and part Z', and tongues o are stamped out of the part Z and'pass through the aforesaid openings, and their ends are turned over to clamp the parts together, as seen in Fig. 3, to form thev pulley. The teeth of the plate m project into the groove ot the wheel g and engage the endless band or helix f and insure the regular movement ot' said band and prevent slipping. 8o

I may prefer, especially in lamps having a large central air-tube, to employ t-wo inclined pulleys g g2, (see Fig. and to cross the endless band and pass the same around the said pulleysand around opposite sides of the wick e at an inclination in order to effect the raising and lowering ot the wick.

In my improvement the wick is readily and" quickly put in place by simply sliding it down over the air-tube to the endless band and then 9o moving the band, there being nothing to interfere with its free movement. It desired, the lower end of the wick can be raveled out, and thus a much longer wick be employed in the lamp.

I claim as my inventionl. The combination, in an Argaud lamp, with the wick and central air-tube, of a pulley capable ot` being rotated, and an endless flexible band passing around the air-tube and loo wick at an inclination and around the pulley, substantially as set forth.

2. The combination, in an Argaud lamp, with the Wick and central air-tube, of an inclined grooVed-pulley, an axis passing thro ugh the fount, anda button or knob for rotating said pulley, and an endless iiexible band passing around the air-tube and Wick at an incliiation and around the pulley, substantially as set forth.

3. The combination, in an Argand lamp, with the Wick and central air-tube, of an inclined pulley and means for rotating the same, and an endless exible band consisting of a Wire helix passing around the Wick at an inclination and around the pulley for rotating the Argand wick and raising or lowering the same by the inclination of the helix, substantially as set forth.

4.-. The combination, in an Argand lamp, with the wick and central air-tube, otV an inclined grooved pulley composed ot' the similar partsl Z and central toothed. plate m, the

Vaxis and hand-knob for rotating said pulley,

Signed by ine this 5th day of February, A. 35

THOMAS I-IIPWELL.

Witnesses:

JOHN J. WRENN, R. TURNER. 

